Sportster Models 883, 883 Custom, 1200 Custom, 883L, 1200L, 1200S, 1200 Roadster, XR1200, and the Nightster.
Sponsored by:
Sponsored by:

2018 Forty Eight Special suspension upgrade

Thread Tools
 
Search this Thread
 
Old Apr 4, 2018 | 02:37 PM
  #11  
kgballer2442's Avatar
kgballer2442
Cruiser
Joined: Aug 2017
Posts: 249
Likes: 72
From: New York
Default

Try making the preload stiffer and it will take the bounce out. When I overload my bike it feels like a mess but when I adjust the suspension accordingly it makes a huge difference.
 
Reply
Old Apr 4, 2018 | 02:46 PM
  #12  
TimmyPage's Avatar
TimmyPage
Road Captain
Joined: May 2017
Posts: 590
Likes: 201
From: Southern Ontario
Default

Originally Posted by LateBloomer67
Yes, to the softest setting, the day after I brought it home.
There should be one or two dots showing on the side of the shocks based on your weight. Is that how you have it set?

My 2017 Iron, same rear shocks as yours I believe, is not bouncy and I'm 145 lbs.
 
Reply
Old Apr 5, 2018 | 08:20 AM
  #13  
LateBloomer67's Avatar
LateBloomer67
Thread Starter
|
Advanced
Joined: Dec 2017
Posts: 78
Likes: 23
From: Northern Virginia
Default

 
Reply
Old Apr 5, 2018 | 08:22 AM
  #14  
kgballer2442's Avatar
kgballer2442
Cruiser
Joined: Aug 2017
Posts: 249
Likes: 72
From: New York
Default

Idk if my cargo rack could handle that lol it's only rated for 25 pounds. Haha
 
Reply
Old Apr 5, 2018 | 09:13 AM
  #15  
LateBloomer67's Avatar
LateBloomer67
Thread Starter
|
Advanced
Joined: Dec 2017
Posts: 78
Likes: 23
From: Northern Virginia
Default

Originally Posted by TimmyPage
There should be one or two dots showing on the side of the shocks based on your weight. Is that how you have it set?

My 2017 Iron, same rear shocks as yours I believe, is not bouncy and I'm 145 lbs.
Ah.... I think I should have chosen a different word than "bouncy". When my bike hits a bump in the road, it does not oscillate, it's just transmitting too much of the hit to me. I could try messing with it some more, but when I first began test-riding Sportys, I tried out an Iron 883 with the shock preload set at about the midpoint and thought it was too jarring. So, when we got back to the dealership we backed the preload off pretty much all the way and that improved the ride. Now, of course, after having bought my own and done about 350 miles so far, it still feels like it should be less jarring when I hit some irregularity in the road. When it comes down to it, I don't see any way to avoid going to a slightly longer shock in the back. I read somewhere that the total travel on the back of my bike is around an inch and a half. It's not all that hard to find a bump in the road that high, and since I have yet to feel the shock bottom out that tells me that, over a bump that size, the shock is moving less than that inch and a half and passing the remainder on to my butt/back.

So, here's a few followup questions:
  1. What is the length of the stock shock? I assume I have to remove (or at least unweight) the shock to measure this accurately, so I was hoping someone already knows it from experience.
  2. How much length can I add before I either (1) start altering the way the bike handles due to other angles being altered and (2) need a longer kickstand? My gut tells me adding an inch should keep me on the right side of these, and getting a one-inch-longer, higher quality shock like a Legend or Ohlins (or, even a Progressive) would notably improve the ride.
  3. I realize simply changing to a different, higher-quality shock design might also improve handling for other reasons even if it alters angles on the bike due to lighting the back end. To that end, I'm willing to consider a more comprehensive approach and make changes on both ends of the bike, but I'm even more confused about what I can do up front just because I haven't looked into it as much yet. But if someone out there did a front/ear upgrade to a Forty Eight that they really liked, I'd like to hear about it.
 
Reply
Old Apr 5, 2018 | 09:33 AM
  #16  
DK Custom's Avatar
DK Custom
Platinum Sponsor
15 Year Member
Liked
Loved
Community Favorite
Joined: Nov 2010
Posts: 18,683
Likes: 5,807
From: Hickory Flat, Mississippi
Default

Originally Posted by LateBloomer67
Hello, all!

I just bought an '18 Forty Eight Special a couple weeks ago (first bike) and after about 300 miles I can already tell that it could use a better suspension. That said, here a a few important details up front:
  • I bought it under the "Freedom to Ride" Sporty promotion, so it's more likely that not at this point that I will trade up within the year, probably to something that can carry more than just me (I already use a backpack to go to and from work on it, which works but is not ideal).
  • My inseam is around 32" and I weight about 165 lbs. I can easily flat-foot the bike at its current height.
  • I do not plan to ride this bike two-up. Already switched saddles once and have no plans to do it again. I'll save that for the next bike.
I have so far only ridden the bike around town, not more than 30 minutes at a time. I was initially concerned that the short-travel, mediocre stock shocks would be unkind to my aging, injured back but that has not been the case yet. But I do find the bike "bouncy"; it just doesn't feel very planted. I have had a few instances of street riding where bumps in the pavement lifted me ever so slightly out of the saddle. This would certainly be unsettling at higher speeds. I don't actually know for certain what the stock shock length is and I have not yet check to see how much the stock setup sags under my static weight. So far, I have looked at Progressive, Legend, and Ohlins. Mainly focused on the rear end but want to hear about any front changes I should consider (the rear end is the part that seems to get my attention).

Thoughts, experiences, recommendations?

Here are some very informative Reports on Suspension-

Rear Suspension LINK

Front Suspension LINK

These are both recommended reading before spending any money or time on suspension changes.

On Sportys especially, we have noticed that the rear stock shocks feel much better AFTER the front suspension is improved.

This is because when hitting a bump with the stock front suspension, it compresses the forks (unloading the rear shocks). Since the forks rebound too slowly, the rear shocks are still unloaded when the rear wheel hits the same bump. This makes the rear shocks feel much stiffer than they would if the front suspension was functioning better.
 
__________________
DKCustomProducts.com
Call/Text: 662-252-8828
Email: Support@DKCustomProducts.com
Open House Details














Reply
Old Apr 5, 2018 | 09:36 AM
  #17  
cvaria's Avatar
cvaria
Supporter
10 Year Member
Liked
Loved
Community Favorite
Joined: Sep 2012
Posts: 12,367
Likes: 2,215
From: Tallahassee, Florida
Supporter
Default

Originally Posted by LateBloomer67

So, here's a few followup questions:
  1. 11"
  2. changes the minute you change the length. you are altering the how much weight is put on the frontend
  3. maybe play with the stock settings. the emulsion shocks are not junk. other brands sel them for 500-600. you can go with some fully adjustables like the ohlins blackline but, play with the stockers before whipping out that wallet
 
Reply
Old Apr 5, 2018 | 10:43 AM
  #18  
kgballer2442's Avatar
kgballer2442
Cruiser
Joined: Aug 2017
Posts: 249
Likes: 72
From: New York
Default

Get a new seat. Maybe one with some shock absorption and spine support. Saddlegel from saddlemen is nice. They cost less than shocks and don't reqiuer much time for installation. Just a thought.
 
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-4

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old Apr 5, 2018 | 10:50 AM
  #19  
LateBloomer67's Avatar
LateBloomer67
Thread Starter
|
Advanced
Joined: Dec 2017
Posts: 78
Likes: 23
From: Northern Virginia
Default

Originally Posted by kgballer2442
Get a new seat. Maybe one with some shock absorption and spine support. Saddlegel from saddlemen is nice. They cost less than shocks and don't reqiuer much time for installation. Just a thought.
I actually did that already, although it was to move me forward more than give me more cushion. But it's worth looking into. I've heard a lot of good about Saddlemen. The one good thing I should add is that I initially worried that the ride on this bike might trigger my back pain once I actually started riding it (beyond the test ride). So far, that hasn't happened.
 
Reply
Old Apr 5, 2018 | 11:01 AM
  #20  
kgballer2442's Avatar
kgballer2442
Cruiser
Joined: Aug 2017
Posts: 249
Likes: 72
From: New York
Default

Look at Danny Gray seats.
 
Reply



All times are GMT -5. The time now is 05:03 PM.

story-0
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-1
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-2
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-3
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-4
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-5
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-6
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-7
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-8
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE